Many of us is thinking every now and then, would it make sense to throw away other network technologies and just use Ethernet or WiFi for everything? It sounds attractive, that single network does everything, only a single tool chain is required and only single technology needs to be learned. At a first glance the answer is ”of course”, but after thinking a while, the answer turn into ”of course not”.Read more

https://tke.fi/wp-content/uploads/2018/03/use-right-network-technology-for-right-purpose.jpg320840Timppahttps://tke.fi/wp-content/uploads/2019/09/tke_logo3.svgTimppa2018-03-23 17:28:402020-05-07 11:09:30Use right network technology for right purpose

New core services in the domain of IoT concentrate on early detection of various exceptions in the target process. The earlier detection shall work, the smaller deviations shall be detected. Reliable identification automatically requires significant improvement in measurement accuracy. Most automation engineers have not identified, that the basic instrumentation needs to upgraded before the all new analytics can work as designed. Read more

https://tke.fi/wp-content/uploads/2018/03/does-your-instrumentation-support-the-new-iot-services.jpg320840Timppahttps://tke.fi/wp-content/uploads/2019/09/tke_logo3.svgTimppa2018-03-19 17:28:052020-05-07 11:09:37Does your instrumentation support the new IoT services?

Residual error analyses for CAN networks have been performed for years. It is well documented, that commonly used equations do not fully apply for analytic computing of the residual error probability of CAN networks. Also too high bit error probability values have commonly been used in the analyses. Furthermore, CANopen networks have been analyzed as CAN networks, without taking into account the additional safeguards provided by various CANopen services. Results have been very pessimistic, which has lead to significant unnecessary cost and complexity in various applications.

https://tke.fi/wp-content/uploads/2020/04/analysis_residual_errors.jpg320840Timppahttps://tke.fi/wp-content/uploads/2019/09/tke_logo3.svgTimppa2017-06-21 14:55:212020-05-07 11:10:03Analysis of residual errors and their consequences in CANopen systems

Eliel Saarinen, a Finnish architect, said: “Always design a thing by considering it in its next larger context – a chair in a room, a room in a house, a house in an environment, an environment in a city plan.” That also applies to system design. Read more

Multiple disciplines for mechatronic system design co-exist, which hinder the utilization of software-oriented modeling principles e.g. UML. Existing modern tools may be integrated into a working tool chain.Read more

https://tke.fi/wp-content/uploads/2020/04/CANopen-frontline-openness-title.jpg320840Timppahttps://tke.fi/wp-content/uploads/2019/09/tke_logo3.svgTimppa2014-03-01 13:21:532020-05-07 11:13:15CANopen in the frontline of openness

Current CANopen design files do not support EECs (emergency error codes) with their human readable descriptions. This feature has become more problematic because of abstraction to parameters and signals. The system structure has become automated and proven way of working. Manual EEC management is decreasing the development efficiency because it is time-consuming and prone to inconsistent codes. These design projects are iterative and effort is wasted on each cycle of each project by managing EECs manually. Descriptions shall be uniformly defined for both producers and consumers. Read more

Various kind of inconsistencies have been typical problems in design of distributed control systems. The first solved issue was an automated generation of signal and parameter abstraction from CANopen project avoiding the inconsistent names between application software and communication. The use of meta information of signals and local parameters, such as name, minimum, maximum and default values has already been implemented to avoid the most common inconsistencies. Read more

Hydraulic valves have been driven by separate valve control electronics for decades. The tradition is becoming obsolete due to ever increasing performance, controllability, maintainability and re-usability requirements of the target systems. However, there are still a lot of functionally constrained fully hydraulic systems which need to be upgraded first to electrically controlled. There are also huge number of simple proprietary control systems needing upgrade from proprietary to standard technologies and components. Especially for such kind of systems, it is important to achieve easy and straightforward upgrade path from use of proprietary valve amplifiers into coil-mounted drivers with current-controlled valve. Further step is replacing separate valves and drivers with intelligent hydraulic drives. It is also important to utilize commonality between lower- and higher performance drive solutions. This presentation shows hands-on case examples how the presented system integration challenges can be solved with standard CANopen devices according to device profiles for general-purpose I/O-devices (CiA-401) and hydraulic drives (CiA-408). The main conclusion is that commitment to CANopen actually enables not only the required approaches, but also manufacturer and device independence with large number of interchangeable devices. Another significant result is that the lowest level applications can be implemented just by integrating standardized devices, without application software project. Read more

Cookie and Privacy Settings

How we use cookies

We may request cookies to be set on your device. We use cookies to let us know when you visit our websites, how you interact with us, to enrich your user experience, and to customize your relationship with our website.

Click on the different category headings to find out more. You can also change some of your preferences. Note that blocking some types of cookies may impact your experience on our websites and the services we are able to offer.

Essential Website Cookies

These cookies are strictly necessary to provide you with services available through our website and to use some of its features.

Because these cookies are strictly necessary to deliver the website, refuseing them will have impact how our site functions. You always can block or delete cookies by changing your browser settings and force blocking all cookies on this website. But this will always prompt you to accept/refuse cookies when revisiting our site.

We fully respect if you want to refuse cookies but to avoid asking you again and again kindly allow us to store a cookie for that. You are free to opt out any time or opt in for other cookies to get a better experience. If you refuse cookies we will remove all set cookies in our domain.

We provide you with a list of stored cookies on your computer in our domain so you can check what we stored. Due to security reasons we are not able to show or modify cookies from other domains. You can check these in your browser security settings.

Check to enable permanent hiding of message bar and refuse all cookies if you do not opt in. We need 2 cookies to store this setting. Otherwise you will be prompted again when opening a new browser window or new a tab.

Click to enable/disable essential site cookies.

Google Analytics Cookies

These cookies collect information that is used either in aggregate form to help us understand how our website is being used or how effective our marketing campaigns are, or to help us customize our website and application for you in order to enhance your experience.

If you do not want that we track your visit to our site you can disable tracking in your browser here:

Click to enable/disable Google Analytics tracking.

Other external services

We also use different external services like Google Webfonts, Google Maps, and external Video providers. Since these providers may collect personal data like your IP address we allow you to block them here. Please be aware that this might heavily reduce the functionality and appearance of our site. Changes will take effect once you reload the page.

Google Webfont Settings:

Click to enable/disable Google Webfonts.

Google Map Settings:

Click to enable/disable Google Maps.

Google reCaptcha Settings:

Click to enable/disable Google reCaptcha.

Vimeo and Youtube video embeds:

Click to enable/disable video embeds.

Other cookies

The following cookies are also needed - You can choose if you want to allow them:

Click to enable/disable _ga - Google Analytics Cookie.

Click to enable/disable _gid - Google Analytics Cookie.

Click to enable/disable _gat_* - Google Analytics Cookie.

Privacy Policy

You can read about our cookies and privacy settings in detail on our Privacy Policy Page.